Multiple instances of Iperf3 to test 40G?

[dabs]

I have a W11 machine with a direct connection using two Mellanox CX354A ConnectX-3 FDR cards (in Ethernet mode). Testing using one instance I am only getting 13Gbps which seems pretty low but I guess it's all I can get with a single thread?

 

Is there a way to run multiple instances of iperf3 on unraid, so i can test further?

 

I did see someone somewhere mention using 'screen' from nerdtools, but I can't find anything conclusive and not sure how to use it

 

Thanks in advance.

[halfelite]

why not just spawn multiple ipref instances 

 

iperf3 -s -p 4500&; iperf3 -s -p 4501&; iperf3 -s -p 4502 &

 

and have the multiple clients attach to each port 

[dabs]

I have tried that but cannot get the W11 client to connect to anything other than the first port

[dabs]

12 hours ago, halfelite said:

why not just spawn multiple ipref instances 

 

iperf3 -s -p 4500&; iperf3 -s -p 4501&; iperf3 -s -p 4502 &

 

and have the multiple clients attach to each port 

It was, in fact a syntax error client side that was making it fail.

 

Thank you

[dabs]

It seems, im stuck at 10G, so I will look into the firmware of the cards for answers